Starting-block



FIG. 1 is a perspective side view of a starting-block showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is an elevational view of the opposite side thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is an end view thereof; and

FIG. 7 is a view of the opposite end thereof. 

The ornamental design for starting-block, as shown and described. 